Address review

README.adoc

@@ -161,7 +161,7 @@ Each sample is tagged with it's difficulty. The degree of difficulty describes h
 | 🐔 Normal
 | MVVM, Dialog, FileDialogs, TopLevel, Clipboard
 
-| link:src\Avalonia.Samples\ViewInteraction\AdvancedMvvmDialogSample[Advanced Dialog Sample]
+| link:src\Avalonia.Samples\ViewInteraction\DialogManagerSample[Dialog Manager Sample]
 | 🐉 Hard
 | MVVM, Dialog, FileDialogs, TopLevel, Clipboard, DialogManager
 

src/Avalonia.Samples/Avalonia.Samples.sln

@@ -40,7 +40,7 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Folder", "Solution
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "MvvmDialogSample", "ViewInteraction\MvvmDialogSample\MvvmDialogSample.csproj", "{48432457-6A55-4D03-9D40-260CE8E06440}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AdvancedMvvmDialogSample", "ViewInteraction\AdvancedMvvmDialogSample\AdvancedMvvmDialogSample.csproj", "{0BC90E92-D8B3-4C6D-8C47-BAF57CD73CBA}"
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DialogManagerSample", "ViewInteraction\DialogManagerSample\DialogManagerSample.csproj", "{0BC90E92-D8B3-4C6D-8C47-BAF57CD73CBA}"
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Testing", "Testing", "{85B157B3-F701-4F75-B4F1-EC2287729480}"
 EndProject

src/Avalonia.Samples/ViewInteraction/AdvancedMvvmDialogSample/ViewModels/MainWindowViewModel.cs

@@ -1,35 +0,0 @@
-using AdvancedMvvmDialogSample.Services;
-using ReactiveUI;
-using System.Collections.Generic;
-using System.Threading.Tasks;
-using System.Windows.Input;
-
-namespace AdvancedMvvmDialogSample.ViewModels
-{
-    public class MainWindowViewModel : ViewModelBase
-    {
-        public MainWindowViewModel()
-        {
-            SelectFilesCommand = ReactiveCommand.CreateFromTask(SelectFilesAsync);
-        }
-
-        private IEnumerable<string>? _SelectedFiles;
-
-        /// <summary>
-        /// Gets or sets a list of Files
-        /// </summary>
-        public IEnumerable<string>? SelectedFiles
-        {
-            get { return _SelectedFiles; }
-            set { this.RaiseAndSetIfChanged(ref _SelectedFiles, value); }
-        }
-
-
-        public ICommand SelectFilesCommand { get; }
-
-        private async Task SelectFilesAsync()
-        {
-            SelectedFiles = await this.OpenFileDialogAsync("Hello Avalonia");
-        }
-    }
-}

src/Avalonia.Samples/ViewInteraction/AdvancedMvvmDialogSample/ViewModels/ViewModelBase.cs

@@ -1,8 +0,0 @@
-using ReactiveUI;
-
-namespace AdvancedMvvmDialogSample.ViewModels
-{
-    public class ViewModelBase : ReactiveObject
-    {
-    }
-}

src/Avalonia.Samples/ViewInteraction/DialogManagerSample/App.axaml

@@ -1,8 +1,8 @@
 <Application xmlns="https://github.com/avaloniaui"
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-             xmlns:local="using:AdvancedMvvmDialogSample"
+             xmlns:local="using:DialogManagerSample"
 			 RequestedThemeVariant="Light"
-             x:Class="AdvancedMvvmDialogSample.App">
+             x:Class="DialogManagerSample.App">
 
     <Application.Styles>
         <FluentTheme />

src/Avalonia.Samples/ViewInteraction/DialogManagerSample/App.axaml.cs

@@ -1,10 +1,10 @@
-using AdvancedMvvmDialogSample.ViewModels;
-using AdvancedMvvmDialogSample.Views;
+using DialogManagerSample.ViewModels;
+using DialogManagerSample.Views;
 using Avalonia;
 using Avalonia.Controls.ApplicationLifetimes;
 using Avalonia.Markup.Xaml;
 
-namespace AdvancedMvvmDialogSample
+namespace DialogManagerSample
 {
     public partial class App : Application
     {

src/Avalonia.Samples/ViewInteraction/DialogManagerSample/DialogManagerSample.csproj

@@ -24,7 +24,7 @@
     <PackageReference Include="Avalonia.Desktop" Version="11.0.0" />
     <!--Condition below is needed to remove Avalonia.Diagnostics package from build output in Release configuration.-->
     <PackageReference Condition="'$(Configuration)' == 'Debug'" Include="Avalonia.Diagnostics" Version="11.0.0" />
-    <PackageReference Include="Avalonia.ReactiveUI" Version="11.0.0" />
     <PackageReference Include="Avalonia.Themes.Fluent" Version="11.0.0" />
+    <PackageReference Include="CommunityToolkit.Mvvm" Version="8.2.0" />
   </ItemGroup>
 </Project>

src/Avalonia.Samples/ViewInteraction/DialogManagerSample/Program.cs

@@ -1,8 +1,7 @@
 using Avalonia;
-using Avalonia.ReactiveUI;
 using System;
 
-namespace AdvancedMvvmDialogSample
+namespace DialogManagerSample
 {
     internal class Program
     {
@@ -17,7 +16,6 @@ namespace AdvancedMvvmDialogSample
         public static AppBuilder BuildAvaloniaApp()
             => AppBuilder.Configure<App>()
                 .UsePlatformDetect()
-                .LogToTrace()
-                .UseReactiveUI();
+                .LogToTrace();
     }
 }

src/Avalonia.Samples/ViewInteraction/DialogManagerSample/README.adoc

@@ -1,4 +1,4 @@
-= Advanced MVVM Dialog Sample
+= Dialog Manager Sample
 // --- D O N ' T    T O U C H   T H I S    S E C T I O N ---
 :toc:
 :toc-placement!:
@@ -12,7 +12,7 @@
 
 
 // Write a short summary here what this examples does
-This example will show you how to write a service that will help you to show dialogs in your MVVM application
+This example will show you how to write a service (we will call it dialog manager) that will help you to show dialogs in your MVVM application
 
 
 
@@ -24,14 +24,14 @@ toc::[]
 === Difficulty
 // Choose one of the below difficulties. You can just delete the ones you don't need.
 
-🐉 Hard 🐉
+🐔 Normal 🐔
 
 
 
 === Buzz-Words
 
 // Write some buzz-words here. You can separate them by ", "
-MVVM, Dialog, FileDialogs, TopLevel, Clipboard, DialogManager
+MVVM, Dialog, FileDialogs, TopLevel, Clipboard, DialogManager, CommunityToolkit.MVVM
 
 
 
@@ -39,35 +39,37 @@ MVVM, Dialog, FileDialogs, TopLevel, Clipboard, DialogManager
 
 We assume you already now how the MVVM pattern works and how dialogs, such as file dialogs, can be shown in general. You should also know what a https://docs.avaloniaui.net/docs/next/concepts/toplevel[[TopLevel\]]-control in Avalonia is and what it can be used for. 
 
+NOTE: In this sample we will use the https://learn.microsoft.com/en-us/dotnet/communitytoolkit/mvvm/[[CommunityToolkit.MVVM\]]-package which provides source generators for less boilerplate code. Please check out their docs if you want to learn more about this. (https://learn.microsoft.com/en-us/dotnet/communitytoolkit/mvvm/generators/overview)
+
 
 == The Solution : Use a DialogService to show a Dialog
 
 // This is where you explain the possible solution you provide in this sample. 
 // If you have more than one option to solve the issue, use Approach 1, Approach 2, ... 
 
-=== Step 1: Add a DialogService-class
+=== Step 1: Add the DialogManager-class
 
-In our project we add a folder called `Services`. Inside we will create a class called `DialogService` which inherits `AvaloniaObject`. 
+In our project we add a folder called `Services`. Inside we will create a class called `DialogManager`.
 
-NOTE: We need to inherit `AvaloniaObject` because we want to add `Register` as an `AttachedProperty`
+NOTE: We do not need to inherit `AvaloniaObject` even as we want to add `Register` as an `AttachedProperty` because Avalonia supports AttachedProperties on any object
 
 Let's add a static `Dictionary` where we can store the registered mappings between the context (our `ViewModel`) and the `View` or `Control`, which we want to interact with. 
 
 ```cs
-public class DialogService : AvaloniaObject
+public class DialogManager
 {
     private static readonly Dictionary<object, Visual> RegistrationMapper =
         new Dictionary<object, Visual>();
 }
 ```
 
-In the next step we add an https://docs.avaloniaui.net/docs/next/concepts/attached-property[[AttachedProperty]] to our dialog service, which we call `Register`. Later we can bind any object to this property from every available `Visual` in our `Views`. 
+In the next step we add an https://docs.avaloniaui.net/docs/next/concepts/attached-property[[AttachedProperty]] to our dialog manager, which we call `Register`. Later we can bind any object to this property from every available `Visual` in our `Views`. 
 
 ```cs
 /// <summary>
 /// This property handles the registration of Views and ViewModel
 /// </summary>
-public static readonly AttachedProperty<object?> RegisterProperty = AvaloniaProperty.RegisterAttached<DialogService, Visual, object?>(
+public static readonly AttachedProperty<object?> RegisterProperty = AvaloniaProperty.RegisterAttached<DialogManager, Visual, object?>(
     "Register");
 
 /// <summary>
@@ -91,28 +93,28 @@ Now that we want to store or remove any new binding into our `Dictionary`, we ne
 
 [source,cs]
 ----
-static DialogService()
+static DialogManager()
 {
-    RegisterProperty.Changed.Subscribe(RegisterChanged);
+    RegisterProperty.Changed.AddClassHandler<Visual>(RegisterChanged);
 }
 
-private static void RegisterChanged(AvaloniaPropertyChangedEventArgs<object?> e)
+private static void RegisterChanged(Visual sender, AvaloniaPropertyChangedEventArgs e)
 {
-    if (e.Sender is not Visual sender)
+    if (sender is null)
     {
-        throw new InvalidOperationException("The DialogService can only be registered on a Control");
+        throw new InvalidOperationException("The DialogManager can only be registered on a Visual");
     }
 
     // Unregister any old registered context
-    if (e.OldValue.Value != null)
+    if (e.OldValue != null)
     {
-        RegistrationMapper.Remove(e.OldValue.Value);
+        RegistrationMapper.Remove(e.OldValue);
     }
 
     // Register any new context
-    if (e.NewValue.Value != null)
+    if (e.NewValue != null)
     {
-        RegistrationMapper.Add(e.NewValue.Value, sender);
+        RegistrationMapper.Add(e.NewValue, sender);
     }
 }
 ----
@@ -193,22 +195,23 @@ public static class DialogHelper
 
 === Step 4: Usage
 
-Now that we have our `DialogService` created, we can start to register the `View` for our `ViewModel`. Thanks to our attached property, we can simply do:
+Now that we have our `DialogManager` created, we can start to register the `View` for our `ViewModel`. Thanks to our attached property, we can simply do:
 
 [source,xml]
 ----
 <UserControl xmlns="https://github.com/avaloniaui"
-             xmlns:dialog="using:AdvancedMvvmDialogSample.Services"
-             dialog:DialogService.Register="{Binding}">
+             xmlns:services="using:DialogManagerSample.Services"
+             services:DialogManager.Register="{Binding}">
     <!-- Your content goes here -->
 </UserControl>
 
 ----
 
-And in the `ViewModel` we can use our extension methods anywhere. The below sample command will ask the user to select a bunch of files:
+And in the `ViewModel` we can use our extension methods anywhere. The below sample command will ask the user to select a bunch of files. The command itself will be created using the source generators that the CommunityToolkit.MVVM-package provides.
 
 [source,c#]
 ----
+[RelayCommand]
 private async Task SelectFilesAsync()
 {
     // Selected Files is a property of our ViewModel
@@ -216,16 +219,6 @@ private async Task SelectFilesAsync()
 }
 ----
 
-The command itself will be created in the constructor. However you can also use the source generators that the CommunityToolkit.MVVM-package provides. 
-
-[source,c#]
-----
-public MainWindowViewModel()
-{
-    SelectFilesCommand = ReactiveCommand.CreateFromTask(SelectFilesAsync);
-}
-----
-
 Now we can add the needed `List` and `Button` in our view:
 
 [source,xml]

src/Avalonia.Samples/ViewInteraction/DialogManagerSample/Services/DialogManager.cs

@@ -6,42 +6,42 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Threading.Tasks;
 
-namespace AdvancedMvvmDialogSample.Services
+namespace DialogManagerSample.Services
 {
-	public class DialogService : AvaloniaObject
+	public class DialogManager
 	{
 	    private static readonly Dictionary<object, Visual> RegistrationMapper =
 			new Dictionary<object, Visual>();
 
-		static DialogService()
+		static DialogManager()
 		{
-			RegisterProperty.Changed.Subscribe(RegisterChanged);
+			RegisterProperty.Changed.AddClassHandler<Visual>(RegisterChanged);
 		}
 
-		private static void RegisterChanged(AvaloniaPropertyChangedEventArgs<object?> e)
+		private static void RegisterChanged(Visual sender, AvaloniaPropertyChangedEventArgs e)
 		{
-			if (e.Sender is not Visual sender)
+			if (sender is null)
 			{
-				throw new InvalidOperationException("The DialogService can only be registered on a Visual");
+				throw new InvalidOperationException("The DialogManager can only be registered on a Visual");
 			}
 
 			// Unregister any old registered context
-			if (e.OldValue.Value != null)
+			if (e.OldValue != null)
 			{
-				RegistrationMapper.Remove(e.OldValue.Value);
+				RegistrationMapper.Remove(e.OldValue);
 			}
 
 			// Register any new context
-			if (e.NewValue.Value != null)
+			if (e.NewValue != null)
 			{
-				RegistrationMapper.Add(e.NewValue.Value, sender);
+				RegistrationMapper.Add(e.NewValue, sender);
 			}
 		}
 
 		/// <summary>
 		/// This property handles the registration of Views and ViewModel
 		/// </summary>
-		public static readonly AttachedProperty<object?> RegisterProperty = AvaloniaProperty.RegisterAttached<DialogService, Visual, object?>(
+		public static readonly AttachedProperty<object?> RegisterProperty = AvaloniaProperty.RegisterAttached<DialogManager, Visual, object?>(
 			"Register");
 		
 		/// <summary>
@@ -102,7 +102,7 @@ namespace AdvancedMvvmDialogSample.Services
 			}
 
 			// lookup the TopLevel for the context
-			var topLevel = DialogService.GetTopLevelForContext(context);
+			var topLevel = DialogManager.GetTopLevelForContext(context);
 			
 			if(topLevel != null)
 			{

src/Avalonia.Samples/ViewInteraction/DialogManagerSample/ViewModels/MainWindowViewModel.cs

@@ -0,0 +1,27 @@
+using DialogManagerSample.Services;
+using System.Collections.Generic;
+using System.Threading.Tasks;
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+
+namespace DialogManagerSample.ViewModels
+{
+    
+    public partial class MainWindowViewModel : ViewModelBase
+    {
+        /// <summary>
+        /// Gets or sets a list of Files
+        /// </summary>
+        [ObservableProperty]
+        private IEnumerable<string>? _SelectedFiles;
+        
+        /// <summary>
+        /// A command used to select some files
+        /// </summary>
+        [RelayCommand]
+        private async Task SelectFilesAsync()
+        {
+            SelectedFiles = await this.OpenFileDialogAsync("Hello Avalonia");
+        }
+    }
+}

src/Avalonia.Samples/ViewInteraction/DialogManagerSample/ViewModels/ViewModelBase.cs

@@ -0,0 +1,8 @@
+using CommunityToolkit.Mvvm.ComponentModel;
+
+namespace DialogManagerSample.ViewModels
+{
+    public class ViewModelBase : ObservableObject
+    {
+    }
+}

src/Avalonia.Samples/ViewInteraction/DialogManagerSample/Views/MainWindow.axaml

@@ -1,16 +1,16 @@
 <Window xmlns="https://github.com/avaloniaui"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-        xmlns:vm="using:AdvancedMvvmDialogSample.ViewModels"
+        xmlns:vm="using:DialogManagerSample.ViewModels"
         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
-        xmlns:dialog="using:AdvancedMvvmDialogSample.Services"
+        xmlns:services="using:DialogManagerSample.Services"
 		mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
-        x:Class="AdvancedMvvmDialogSample.Views.MainWindow"
+        x:Class="DialogManagerSample.Views.MainWindow"
 		x:DataType="vm:MainWindowViewModel"
 		x:CompileBindings="True"
-        dialog:DialogService.Register="{Binding}"
+        services:DialogManager.Register="{Binding}"
         Icon="/Assets/avalonia-logo.ico"
-        Title="AdvancedMvvmDialogSample">
+        Title="DialogManagerSample">
 
     <Design.DataContext>
         <vm:MainWindowViewModel/>

src/Avalonia.Samples/ViewInteraction/DialogManagerSample/Views/MainWindow.axaml.cs

@@ -1,6 +1,6 @@
 using Avalonia.Controls;
 
-namespace AdvancedMvvmDialogSample.Views
+namespace DialogManagerSample.Views
 {
     public partial class MainWindow : Window
     {

src/Avalonia.Samples/ViewInteraction/MvvmDialogSample/README.adoc

@@ -302,7 +302,7 @@ image::_docs/result_1.png[Custom interaction sample]
 
 There are more ways to show dialogs from the ViewModel, for example: 
   
-* link:../AdvancedMvvmDialogSample[Dialog Service]
+* link:../DialogManagerSample[DialogManager Service]
 * https://github.com/AvaloniaCommunity/awesome-avalonia#mvvm--mvp--mvu[third party libs]